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Foveated Depth-of-Field Filtering in Head-Mounted Displays

  • In recent years, a variety of methods have been introduced to exploit the decrease in visual acuity of peripheral vision, known as foveated rendering. As more and more computationally involved shading is requested and display resolutions increase, maintaining low latencies is challenging when rendering in a virtual reality context. Here, foveated rendering is a promising approach for reducing the number of shaded samples. However, besides the reduction of the visual acuity, the eye is an optical system, filtering radiance through lenses. The lenses create depth-of-field (DoF) effects when accommodated to objects at varying distances. The central idea of this article is to exploit these effects as a filtering method to conceal rendering artifacts. To showcase the potential of such filters, we present a foveated rendering system, tightly integrated with a gaze-contingent DoF filter. Besides presenting benchmarks of the DoF and rendering pipeline, we carried out a perceptual study, showing that rendering quality is rated almost on par with full rendering when using DoF in our foveated mode, while shaded samples are reduced by more than 69%.

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Document Type:Article
Author:Martin Weier, Thorsten Roth, André Hinkenjann, Philipp Slusallek
Parent Title (English):ACM Transactions on Applied Perception
Article Number:26
Number of pages:14
Publisher:Association for Computing Machinery
Date of first publication:2018/09/19
Award:Best Paper Award, 15th ACM Symposium on Applied Perception (SAP '18), Vancouver, British Columbia, Canada, August 10 - 11, 2018
Copyright:© 2018 Association for Computing Machinery. Abstracting with credit is permitted.
Funding:The work is supported by the German Federal Ministry for Economic Affairs and Energy (BMWi) funding the MoVISO ZIM-project under Grant No. ZF4120902.
Keyword:Gaze-contingent depth-of-field; eye-tracking; foveated rendering; ray tracing
Departments, institutes and facilities:Fachbereich Informatik
Institute of Visual Computing (IVC)
Dewey Decimal Classification (DDC):0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Entry in this database:2018/09/22